issb intelligence MCQ #60

Which number replaces ?: 5, 10, 20, 40, ?

issb intelligence MCQ #60

  1. Question 1

    Q1. Which number replaces ?: 5, 10, 20, 40, ?

    • A) 60
    • B) 70
    • C) 80
    • D) 100

    Answer: 80

    Explanation: Each term doubles. 40 x 2 = 80. Work each step carefully; ISSB math rewards accuracy under time pressure.